/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/HierarchyEditor/NiagaraSummaryViewViewModel.h
Override this to handle drop-on logic. This is called when an item has been dropped on the item that has implemented this function.
virtual void OnDroppedOnInternal ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FNiagaraHierarchyItemViewModelBase](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\FNiagaraHierarch-_6) >, EItemDropZone ItemDropZone )